Why the brix of milk decreased when temp decrease? I wanna make a milk lactose free but when I decreased temp from 70 C to 12 C, the brix of milk will decrease. Moreover, after fermentation the milk with enzyme lactase, the brix of this milk is very decrease (decrease around 5 brix).
So, please help me why the brix be like that?? Thank you.

Polymerization reaction

Reaction involved in present system is :   c12h22o11 + h2o → 2 c6h12o6the reaction system is obeying following rate law:   rate = k[c12h22o11]thus, it is a first order reaction.now, for 1st order reactionrate constant (k) =  given: initial conc. = 3.0 g, final conc. = 2.7 g, t = 2.5 h∴rate constant (k) =  ∴ k = 0.04215 h-1now, for 1st order reaction, half life = 0.693/k = 0.693/0.04215 = 16.4 hthus correct answer is option b

The independent is what is changed, the dependent is was is measured or the reaction.